Is it cause of any deficiency

Hi Gurmeet Singh . It looks, no major problem as if now. Care: Don't do overwatering and direct watering oand follow other good practices to get its good growth.

This package can solve my tomato plants provblem if yes how much in need to add it. In hydroponic water(40ltr)

T

How I can bring down ph in my hydroponics now it's 8.5

Gurmeet Singh what are you using to measure your ph? Citric acid can be used to lower down ph in hydroponics